GRAPHTEC GL100 User manual

2-17
CHAPTER2ChecksandPreparation
Tip of the sensor mounting
1. Connect the AC Current Sensor (GS-AC**A, sold separately) (1) Recording to the module.
Connecting :Pushtheconnectorinuntilitlocksin.
Disconnecting :Pulltheconnectoroutwhilepressingdownonthelockonthebottomwithyourfinger.
K=>L K=>L
Connectorcable
ACCurrentSensor
The connector is exclusively to be used to connect the AC Current Sensor. Do not connect it to voltages,
other electrical currents, etc. It will damage the module.
Pulling the AC Current Sensor’s cable and holding the sensor by the cable will damage the cable’s wires.
2. How to measure with AC Current Sensor
RemovetheACCurrentSensor’slock,insertthemeasurementcableandpushitinuntilitlocks(puttingthecablein
thewrongwaywillcausethemoduletomeasureincorrectly).
K=>L
K=>L
Unlock Insertthecableand
pushitinuntilitclicks.
Loadside(L)
Powerside(K)
Clamp ch1 or ch2 to L-phase when using single-phase 2-wire
Clamp ch1 and ch2 to R-phase and S-phase respectively when using single-phase 3-wire.
Clamp ch1 and ch2 to R-phase and T-phase respectively when using 3-phase 3-wire.
K=>L K=>L
SR T
K=>L K=>L
NR
K=>L
NL S
Loadside(L)
Powerside(K)
Loadside(L)
Powerside(K)
Loadside(L)
Powerside(K)
<Single-phase2-wire> <Single-phase3-wire> <3-phase3-wire>
Exampleofwiring
*Itmaybedamagedwhenlifting
morethannecessarythehook,
sopleaseusecaution.
HOW TO USE THE GL100 WITH GS DPA-AC CURRENT SENSORS
Installation brief for GL100 Power Monitoring Solution
Tips for sensor mounting
The connector is exclusively used to connect the AC current sensor. Do not connect it directly to
voltage, or other electrical currents, etc.
Do not pull the AC current sensor cable from the adapter. Press the lock mechanism to unlock the clamps.
Remove the AC current sensor’s lock, insert the measurement cable and push it in until it locks down
(putting the cable in the wrong way will cause the module to measure incorrectly).
* It may damage when lock
mechanism is lifted more than
necessary, please use caution.
Connect the AC Current Sensor (GS DPA-AC, sold separately)

2-18
CHAPTER2ChecksandPreparation
Tip of Settings
1. Various settings
InAMPsettingscreen,selectthemeasurementmode.Nextselectthesensortypetobeusedandthensetthe
measurementvoltageandpowerfactor.
㹙㸿㹋㹎㹛ࠉࠉࠉࠉࠉࠉࠉࠉࠉࠉࠉࠉࠉ㸯㸭㸶
㹋㹃㸿㹑㸬㹋㹭㹢㹣㸸㸿㹁㸯㸫㸰ࠉࠉࠉࠉࠉࠉ
㹁㹆㸸㹇㹬㹮㹳㹲ࠉࠉ㹔㹭㹪㹲ࠉࠉ㹎㸬㹄㸬ࠉ
ࠉ㸯㸸㸰㸮㸮㸿ۃࠉࠉ㸯㸮㸮㹔ۃࠉ㸯㸬㸮㸮ۃ
ࠉ㸰㸸㸰㸮㸮㸿ۃࠉࠉ㸯㸮㸮㹔ۃࠉ㸯㸬㸮㸮ۃ
ࠉࠉ
ࠉࠉ
MEAS. Mode
AC1 2W(2ch)
Input Off,50,100,200A
DC-V 90to264V
Powerfactor 0.30to1.00
AC1 3W,AC3 3W
Input 50,100,200A
DC-V 90to264V
Powerfactor 0.30to1.00
Input: : BesuretomatchtotheACcurrentsensortypetobeused.
DC-V : Settheeffectivevoltagetobemeasured.Sinceitisusedtointernallyconvertthecurrentvalue,
besuretosettothecorrectvalue.
Powerfactor : Specifythepowerfactortobemeasured.
Thepowerfactorisratioofactivepowerto(apparent)power,dependsonthemeasuringobject.
Sincethepowerfactorisusedtointernallyconvertthecurrentvaluetothepowervalue,itisrequiredtoadjust
accordingtothemeasuringobject.
Formula used internally
Actuallythecurrentvalueismeasured.ThepowervalueisconvertedbymultiplyingtheAMPsettingvoltagebythe
currentvaluemeasuredwiththepowerfactor(ratioofactivepower).(Seethefollowingformula.)
AC1 2W : Measurementsettingwhensingle-phase2-wireisused
 2chmeasurementispossible.
*Power=MeasuredcurrentxVoltagexPowerfactor
AC1 3W : Measurementsettingwhensingle-phase3-wireisused
*Power=(Measuredcurrent(ch1)+Measuredcurrent(ch2))xVoltagexPowerfactor
AC3 3W : Measurementsettingwhenthree-phase3-wireisused
*Power=((Measuredcurrent(ch1)+Measuredcurrent(ch2))÷2)xVoltagex√3xPowerfactor
In AMP setting screen, select the measurement mode. Next select sensor type and then set the measurement
voltage and power factor.
Be sure to match the AC current sensor type used.
Set the effective voltage. Since it is used to internally convert the current value, be sure to set
to the correct value.
Specify the power factor.
depending on the measuring object.
levels.
Actual
Tips for settings

2-19
CHAPTER2ChecksandPreparation
2. Example of measurement
(1) Measurement with single-phase 100V, 2 loads
Whenthefollowingconnectionisestablished,eachcurrentmeasurementforI,Ia,andIbispossible.
(TheclampinthefollowingfigureindicatesthemeasurementpointofACcurrentsensor.)
However,whenmeasuredbytheGL10 0,itisnotnecessarilyI=Ia+Ib(Sinceitiscalculatedinvectorquantity.).
Ib
100V
I
Ia
ZaZb
Clamp 1 Clamp 2
Clamp 3
(2) Single-phase 3-wire (100V and 200V)
(TheclampinthefollowingfigureindicatesthemeasurementpointofACcurrentsensor.)
1) Single-phase3-wire(AC1 3W):Measuredattheclamp1(CH1)andclamp2(CH2).
CurrenteffectivevalueofI1=Ia+Ibismeasuredattheclamp1(CH1).
CurrenteffectivevalueofI3=-Ia-Icismeasuredattheclamp2(CH2).
Note: Positive value is displayed regardless of the current direction because it is effective value.
Totalpoweriscalculatedinaccordancewiththesetvoltage100Vandpowerfactor.
2) Single-phase2-wire(AC1 2W):Measuredattheclamp3,clamp4andclamp5insingle-phase2-wiremode.
CurrenteffectivevalueofIbismeasuredattheclamp3.
Currenteffectivevalueof-Icismeasuredattheclamp4.
Note: Positive value is displayed regardless of the current direction because it is effective value.
CrrenteffectivevalueofIaismeasuredattheclamp5.
Eachpoweriscalculatedinaccordancewiththesetvoltage100Vandpowerfactorattheclamp3andclamp4.
Poweriscalculatedinaccordancewiththesetvoltage200Vandpowerfactorattheclamp5.
200V
I1
I2 Ia
Za
Ib
Ic
I3
100V
100V
Clamp 1 (CH1) Clamp 3
Clamp 4Clamp 2
Clamp 5
I1-I2-I3=0
I1=Ia+I b
I2=Ic-Ib
I3=Ia-Ic
the displayed data does not necessarily follow l = la + lb
(since the results are calculated in vector quantity.).
Effective current
Effective current
Effective current
Effective current
Effective current
in effective value.
the designated power factor.
in effective value.

2-20
CHAPTER2ChecksandPreparation
3) Howtomeasurewiththree-phase3-wire
(TheclampinthefollowingfigureindicatesthemeasurementpointofACcurrentsensor.)
Blondel'stheorem:“Whenthenumberofelectricalconductorsisn,themulti-phasepowercanbemeasuredbythe
watt-meter(n-1)”.TheΔ-connectionandY-connectionaredescribedbelow.ThecurrenteffectivevalueofRandT
powerlinearemeasuredattheclamp1and2.
UsingtheBlondel'stheorem,theGL100calculatesthepowerwiththefollowingformula.
Power=((Measuredcurrent(CH1)+Measuredcurrent(CH2))÷2)xSetvoltagex√3xSetpowerfactor
Measurementmethod:Measuredattheclamp1(CH1)andclamp2(CH2)inthree-phase3-wire(AC3 3W)mode.
ThecurrenteffectivevalueofR(U)phaseismeasuredattheclamp1(CH1),andthecurrenteffectivevalueofT(W)
phaseismeasuredattheclamp2(CH2).
Thepoweriscalculatedinaccordancewiththesetvoltageandpowerfactor.
Clamp 1 (CH1)
T
T S
R
S
R
Clamp 2 (CH2)
Δ-connection
Powersupplyside Loadside
Clamp 1 (CH1)
T
R
SClamp 2 (CH2)
Powersupplyside Loadside
Y-connection(Star)
Note:IfthecurrentflowsintheneutralconductorintheY-connection,themeasurementerroroccurs
becausethesumofthethreephasecurrentsisnotzero.
The effective current value of R (U) phase is measured at clamp 1 (CH1), and effective current value of T (W)
phase is measured at clamp 2 (CH2).
The power is calculated in accordance with the set voltage and designated power factor.

2-21
CHAPTER2ChecksandPreparation
(3) Display screen
Indisplayscreen
㸯㸬㸿㹁㸦㸿㸧㸸ࠉ㸯㸮㸳㸬㸮㸶㸿
ࠉࠉ㹎㹕㹐㸬ࠉࠉࠉࠉ㸯㸮㸬㸳㸯
㹩㹵
㸰㸬㸿㹁㸦㸿㸧㸸ࠉ㸯㸮㸳㸬㸮㸶㸿
ࠉࠉ㹎㹕㹐㸬ࠉࠉࠉࠉ㸯㸮㸬㸳㸯
㹩㹵
㹀㸿㹒ࠉ㹊㸿㹌ࠉ㹑㹂ࠉࠉࠉࠉ㹑㸸ࠉ㸯㸬㸮㹱
㹑㹒㹍㹎ࠉࠉࠉ㸿㹊㹋㸬ࠉࠉࠉࠉࠉࠉ㸯㸸㸰㸶
•Theinstantaneouspoweronlyisdisplayedduringfree-running.
Accumulated Value
Duringrecording,youcanswitchtotheaccumulationscreenbyoperating[ ]and[ ]keys.
１．ＡＣ（Ａ）：１０５．０８Ａ
ＰＷＲ． １０．５１
ｋｗ ｈ
２．ＡＣ（Ａ）：１０５．０８Ａ
ＰＷＲ． １０．５１
ｋｗ ｈ
ＢＡＴ ＬＡＮ ＳＤ Ｓ： １．０ｓ
ＳＴＯＰ ＡＬＭ． １：２８
Accumulatedvaluedisplay
１．ＡＣ（Ａ）： １０５．０８Ａ
ＰＷＲ． １０．５１
ｋｗ
２．ＡＣ（Ａ）： １０５．０８Ａ
ＰＷＲ． １０．５１
ｋｗ
ＢＡＴ ＬＡＮ ＳＤ Ｓ： １．０ｓ
ＲＥＣ． ＡＬＭ． １：２８
Normaldisplay
Howtocleartheaccumulatedvalue
Tocleartheaccumulatedvalue,followthefollowingprocedure.
•Whenyoustart,theaccumulatedvalueisclearedandtheaccumulationoperationisperformed.
Theaccumulationoperationisperformedevenintriggerwaitingstate.
The instantaneous power is displayed only during free-running mode.
During recording, you can switch to accumulated value
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